Garmin Fishfinder 240 Blue Руководство пользователя - Страница 41

Просмотреть онлайн или скачать pdf Руководство пользователя для Морская система GPS Garmin Fishfinder 240 Blue. Garmin Fishfinder 240 Blue 50 страниц. Garmin fishfinder 160 blue owner's manual
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Whiteline

The Fishﬁ nder 160 Blue can help you to determine if the bottom is

hard or soft. When the sonar soundwaves are reﬂ ected back by the bottom,

a hard bottom will return a stronger signal than a soft bottom. The stronger

the bottom return, the wider the bottom layer is displayed. The unit uses

the Whiteline function to make this bottom layer information easier to

distinguish.

When viewing the display without Whiteline active, the bottom return

is black. While you can make some determination of the bottom type,

the black return makes this more difﬁ cult. With the Whiteline active, the

bottom return appears layered in shades of gray and black, which makes

determining the bottom type easier and more reliable. Example 3 shows

the bottom return with and without the Whiteline activated.

Whiteline Turned Off

Hard

Bottom

Whiteline

Whiteline Activated

Example 3.

Understanding the Chart

Whiteline can also help you to determine the type of

bottom structure that is displayed on the chart. By

determining the hardness of the structure you can

make a better informed decision as to the type of

structure.

Soft

Bottom

Structure is hard, probably a

rock or stump

On the Water

Structure is soft, probably a

mud pile